Natalie L Semchyshyn

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Individuals with Fitzpatrick skin types IV to VI are becoming a larger proportion of our patient base. Although acne scarring can be difficult to treat in all skin types, it presents a greater challenge in darker skin types due to an increased risk for scarring and postinflammatory hyperpigmentation (PIH). Few studies have focused on infrared laser(More)
Sorafenib, a multitargeted kinase inhibitor used for the treatment of unresectable hepatocellular carcinoma and advanced renal cell carcinomas, received FDA approval in 2005. Since its introduction to the market, there have been various dermatologic side effects reported in the literature, the most well known being hand-foot skin reaction. This article(More)
A new modality, the Portrait plasma skin regeneration (PSR3) system, allows precise and rapid treatment of photo-damaged skin, with controlled thermal injury and modification. Radio frequency (RF) energy converts nitrogen gas into plasma within the handpiece. Rapid heating of the skin occurs as the plasma rapidly gives up energy to the skin. This energy(More)
BACKGROUND Botulinum toxin is a popular and effective treatment for dynamic rhytids. It is a neurotoxic protein complex that exerts its effect by inhibiting acetylcholine release at the presynaptic neuromuscular junction. Nonablative resurfacing treatments have also become well liked by patients and physicians owing to the minimal downtime associated with(More)
BACKGROUND Botulinum toxin A is well documented as a useful therapy for smoothing dynamic facial rhytides of the upper face. Most controlled studies have focused on the treatment of glabellar frown lines, horizontal forehead lines, and crow's feet. Reports of botulinum toxin A use in the lower face are few and anecdotal. OBJECTIVE We present our(More)
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